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Author SHA1 Message Date
Chris Lattner 0d67dde00a done 
llvm-svn: 32013
 2006-11-29 07:21:46 +00:00
Chris Lattner aeddf5f077 new bswap idiom 
llvm-svn: 32012
 2006-11-29 07:21:08 +00:00
Chris Lattner 960acb008b implement cast.ll:test35. With this, we recognize: 
unsigned short swp(unsigned short a) {
       return ((a & 0xff00) >> 8 | (a & 0x00ff) << 8);
}

as an idiom for bswap.

llvm-svn: 32011
 2006-11-29 07:18:39 +00:00
Chris Lattner 19d72c9f4f new testcase 
llvm-svn: 32010
 2006-11-29 07:17:32 +00:00
Chris Lattner d747f015ff Teach instcombine to turn trunc(srl x, c) -> srl (trunc(x), c) when safe. 
This implements InstCombine/cast.ll:test34.  It fires hundreds of times on
176.gcc.

llvm-svn: 32009
 2006-11-29 07:04:07 +00:00
Chris Lattner 544dfa013c new testcase 
llvm-svn: 32008
 2006-11-29 07:03:00 +00:00
Chris Lattner 7b34c1391a This fails on mainline. 
llvm-svn: 32007
 2006-11-29 05:19:32 +00:00
Chris Lattner a7942b7bbd Implement Regression/Transforms/InstCombine/bswap-fold.ll, 
folding   seteq (bswap(x)), c -> seteq(x,bswap(c))

llvm-svn: 32006
 2006-11-29 05:02:16 +00:00
Chris Lattner e7f83dcf4b new testcase, bswaps should be eliminated. 
llvm-svn: 32005
 2006-11-29 05:00:14 +00:00
Evan Cheng 8facb43593 16-byte stack alignment for X86-64 ELF. Patch by Dan Gohman. 
llvm-svn: 32004
 2006-11-29 02:00:40 +00:00
Evan Cheng feba507a97 Fix for PR1023 by Dan Gohman. 
llvm-svn: 32003
 2006-11-29 01:58:12 +00:00
Evan Cheng 79ca238966 Add test cases for PR1022, 1023. 
llvm-svn: 32002
 2006-11-29 01:57:06 +00:00
Chris Lattner 38084725a2 Upgrade the ugly darwin 64-bit bswap idiom (bswap %eax / bswap %edx / 
xchgl %eax, %edx) to llvm.bswap.i64.  This compiles:

long long test2(long long A) {
  return _OSSwapInt64(A);
}

to:

_test2:
        movl 8(%esp), %eax
        movl 4(%esp), %edx
        bswapl %eax
        bswapl %edx
        ret

instead of:

_test2:
        movl 8(%esp), %edx
        movl 4(%esp), %eax
        bswap   %eax
        bswap   %edx
        xchgl   %eax, %edx
        ret

GCC manages (with -fomit-frame-pointer) the uglier:

_test2:
        subl    $4, %esp
        movl    8(%esp), %eax
        movl    12(%esp), %edx
        bswap   %eax
        bswap   %edx
        xchgl   %eax, %edx
        addl    $4, %esp
        ret

llvm-svn: 32001
 2006-11-29 01:48:01 +00:00
Evan Cheng 6e12a052ff Fix for PR1022 (folding loads of static initializers) by Dan Gohman. 
llvm-svn: 32000
 2006-11-29 01:38:07 +00:00
Chris Lattner 0fc6ae0c3d Trivially lower 'bswap $0' into llvm.bswap. This fixes hexxagon with the 
JIT on darwin/x86, which has htonl implemented as inline asm.

llvm-svn: 31999
 2006-11-29 01:14:06 +00:00
Bill Wendling 18739dc03f WTF? These weird newlines got in there... 
llvm-svn: 31998
 2006-11-29 01:14:00 +00:00
Chris Lattner 90f4238c38 add a hook to allow targets to hack on inline asms to lower them to llvm 
when they want to.

llvm-svn: 31997
 2006-11-29 01:12:32 +00:00
Reid Spencer a736fdf216 Join a split line. 
llvm-svn: 31996
 2006-11-29 01:11:01 +00:00
Bill Wendling 5c3966aa68 Converted to using llvm streams instead of <iostream>s 
llvm-svn: 31992
 2006-11-29 00:39:47 +00:00
Bill Wendling afd54eb8b6 Replacing std::iostreams with llvm iostreams. Some of these changes involve 
adding a temporary wrapper around the ostream to make it friendly to
functions expecting an LLVM stream. This should be fixed in the future.

llvm-svn: 31990
 2006-11-29 00:19:40 +00:00
Bill Wendling a531ac291c Convert to using llvm streams instead of iostreams. 
llvm-svn: 31989
 2006-11-28 23:33:06 +00:00
Bill Wendling a38b3e15be Support for llvm_ostreams. 
llvm-svn: 31988
 2006-11-28 23:31:42 +00:00
Andrew Lenharth 904ca9c688 gcc doesn't like an empty colbber list 
llvm-svn: 31987
 2006-11-28 23:07:32 +00:00
Bill Wendling be6ce9d1c7 Use ostream instead of iostream 
llvm-svn: 31986
 2006-11-28 22:49:32 +00:00
Bill Wendling 787b77320f Use llvm streams instead of <iostream> 
llvm-svn: 31985
 2006-11-28 22:48:48 +00:00
Bill Wendling 6c1740f31f Removed #include <iostream> and used llvm streams 
llvm-svn: 31984
 2006-11-28 22:47:12 +00:00
Bill Wendling 597d451fea Removed some of the iostream #includes. Moved towards converting to using 
llvm streams

llvm-svn: 31983
 2006-11-28 22:46:12 +00:00
Bill Wendling a60d8edfc9 Support for llvm streams. 
llvm-svn: 31982
 2006-11-28 22:45:17 +00:00
Chris Lattner 228bcd3802 Add a helper function 
llvm-svn: 31981
 2006-11-28 22:32:35 +00:00
Andrew Lenharth f52ae7ec72 Identities are default now 
llvm-svn: 31980
 2006-11-28 22:28:08 +00:00
Andrew Lenharth 8b59fd03c2 Make identity default, and fix PR1020 
llvm-svn: 31979
 2006-11-28 22:25:32 +00:00
Bill Wendling f89955be1b Added a temporary hack to get the llvm-streams to work for future checkins. 
llvm-svn: 31978
 2006-11-28 22:21:29 +00:00
Reid Spencer 116ad83aa0 Undo the last patch until 253.perlbmk passes with these changes. 
llvm-svn: 31977
 2006-11-28 20:23:51 +00:00
Evan Cheng 69b1825488 New entries. 
llvm-svn: 31976
 2006-11-28 19:59:25 +00:00
Andrew Lenharth 7f739d5bdd update comments 
llvm-svn: 31975
 2006-11-28 19:56:02 +00:00
Andrew Lenharth 212f15fa8a Get the asminfo for the target most closely matching the module and use that for inline asm 
llvm-svn: 31974
 2006-11-28 19:53:36 +00:00
Andrew Lenharth 2675e23a7e X86 asm -> gcc asm translation table (incomplete) 
llvm-svn: 31973
 2006-11-28 19:52:49 +00:00
Andrew Lenharth ff35b449a0 Add per-target support for asm translation in the cbe 
llvm-svn: 31972
 2006-11-28 19:52:20 +00:00
Jim Laskey 40182179b6 Remove debug code. 
llvm-svn: 31970
 2006-11-28 18:27:02 +00:00
Jim Laskey ec05b046c7 Prime text sections to improve branch locality in large object files. 
llvm-svn: 31969
 2006-11-28 18:21:52 +00:00
Jim Laskey f4e2e009d9 32-bit int space was not accounted for properly in lowerCall. 
llvm-svn: 31966
 2006-11-28 14:53:52 +00:00
Reid Spencer 55f1fbee2e Regenerate. 
llvm-svn: 31965
 2006-11-28 07:29:44 +00:00
Reid Spencer d47017990b Implement signedness caching for values, value lists, constants and 
constant lists. This is just an internal change to the parser in
preparation for some backwards compatibility code that is to follow.
This will allow things like "uint 4000000000" to retain the unsignedness
of the integer constant as the value moves through the parser. In the
future, all integer types will be signless but parsing "uint" and friends
will be retained for backwards compatibility.

llvm-svn: 31964
 2006-11-28 07:28:14 +00:00
Reid Spencer 59fe2d89ae Remove 4 FIXME's from the CAST patch now that the back end is correctly 
producing code for "trunc to bool". This passes all tests on Linux.

llvm-svn: 31963
 2006-11-28 07:23:01 +00:00
Reid Spencer d077fe70e9 Add an -append-exit-code option to bugpoint. This will cause bugpoint to 
append "exit <retcode>" to the end of the output file. This is used by
the nightly tester to make bugpoint match the output generated by the
RunSafely.sh script so it doesn't find false positives.

llvm-svn: 31960
 2006-11-28 07:04:10 +00:00
Reid Spencer 21052cd48f Fix a typo. 
llvm-svn: 31959
 2006-11-28 06:14:06 +00:00
Bill Wendling bc0d5f8bcb Put the #include for a module first. 
llvm-svn: 31958
 2006-11-28 03:31:29 +00:00
Evan Cheng b2a6b0dbad Clean up. 
llvm-svn: 31957
 2006-11-28 02:25:34 +00:00
Evan Cheng db8f19fb90 Fix indentation. 
llvm-svn: 31956
 2006-11-28 02:22:51 +00:00
Bill Wendling dfc91897df Changed to using LLVM streams. 
llvm-svn: 31955
 2006-11-28 02:09:03 +00:00
Bill Wendling 3f6f0fd028 Changed to using llvm streams. 
llvm-svn: 31954
 2006-11-28 02:08:17 +00:00
Bill Wendling cd2f1a897f Added helper function to transition to using llvm streams. 
llvm-svn: 31953
 2006-11-28 02:07:29 +00:00
Evan Cheng 8ddbdc70b7 Fix JIT encoding bugs for shift / rotate by one ops. 
llvm-svn: 31952
 2006-11-28 01:28:00 +00:00
Chris Lattner e88ff3a961 testcase for pr1016 
llvm-svn: 31951
 2006-11-28 01:26:37 +00:00
Chris Lattner 3abb63651b Fix PR1016 
llvm-svn: 31950
 2006-11-28 01:03:30 +00:00
Bill Wendling 5834fdb371 Removed #include <iostream> and replaced streams with llvm streams. 
llvm-svn: 31949
 2006-11-27 23:54:50 +00:00
Andrew Lenharth e8c64aba11 Preliminary support for inline asm in the cbe. The target specific ugliness 
is still in Writer, but issolated to a single function. This might be split
into something in each target directory.  This is sufficient to get through
archie and an strcpy impl on linux-x86.

Module level asm is not handled.

llvm-svn: 31948
 2006-11-27 23:50:49 +00:00
Evan Cheng 20350c4025 Change MachineInstr ctor's to take a TargetInstrDescriptor reference instead 
of opcode and number of operands.

llvm-svn: 31947
 2006-11-27 23:37:22 +00:00
Chris Lattner 5230e9175a remove dead tag 
llvm-svn: 31944
 2006-11-27 21:53:28 +00:00
Chris Lattner 5d5916b4d1 Fix the dag combiner bug corresponding to PR1014. 
llvm-svn: 31943
 2006-11-27 21:50:02 +00:00
Chris Lattner f36cc15a84 this doesn't pass with CVS HEAD. 
llvm-svn: 31942
 2006-11-27 20:01:48 +00:00
Chris Lattner 8e9a7b73d9 Fix PR1014 and InstCombine/2006-11-27-XorBug.ll. 
llvm-svn: 31941
 2006-11-27 19:55:07 +00:00
Reid Spencer 5fb4da8c5d Add 3 more test cases for ptrtoint, fptoui and fptosi 
llvm-svn: 31940
 2006-11-27 19:54:23 +00:00
Chris Lattner 2c2e34b2c4 testcase for PR1014 
llvm-svn: 31939
 2006-11-27 19:47:22 +00:00
Reid Spencer 16eaffe595 When truncating to bool, it is necessary to & with 1 for all casts that 
can result in a bool. Previously PtrToInt, FPToUI and FPToSI were missing
this operation.

llvm-svn: 31938
 2006-11-27 18:51:06 +00:00
Bill Wendling f790e9de2c Protect against null streams. 
llvm-svn: 31937
 2006-11-27 10:45:49 +00:00
Bill Wendling 7339b8dbfd Removed #include <iostream> and replaced with llvm_* streams. 
llvm-svn: 31936
 2006-11-27 10:09:12 +00:00
Reid Spencer 141519fbc0 Alter these tests to ensure they match a "test $1, X" X86 instruction that 
is now generated by the LLVM backend for "trunc to bool" instructions.

llvm-svn: 31935
 2006-11-27 05:08:03 +00:00
Reid Spencer b3281892d9 Add a test to ensure a bitcast/and/trunc combination eliminates the bitcast. 
llvm-svn: 31934
 2006-11-27 05:06:58 +00:00
Chris Lattner 3da631f29a For better or worse, load from i1 is assumed to be zero extended. Do not 
form a load from i1 from larger loads that may not be zext'd.

llvm-svn: 31933
 2006-11-27 04:40:53 +00:00
Chris Lattner db18938355 If a brcond condition is promoted, make sure to zero extend it, even if not 
expanded into BR_CC.

llvm-svn: 31932
 2006-11-27 04:39:56 +00:00
Reid Spencer 6c38f0bb07 For PR950: 
The long awaited CAST patch. This introduces 12 new instructions into LLVM
to replace the cast instruction. Corresponding changes throughout LLVM are
provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the
exception of 175.vpr which fails only on a slight floating point output
difference.

llvm-svn: 31931
 2006-11-27 01:05:10 +00:00
Reid Spencer afbc00bc38 Don't use bitcast yet! 
llvm-svn: 31930
 2006-11-26 21:22:01 +00:00
Reid Spencer 2dd1741565 Make this test case easier to read. No functional changes. 
llvm-svn: 31929
 2006-11-26 18:27:09 +00:00
Bill Wendling 3750ae25a0 Removed #include <iostream> and replace with llvm_* streams. 
llvm-svn: 31927
 2006-11-26 10:52:51 +00:00
Bill Wendling a88968b9c4 Add method that will take a function pointer so that it can handle things 
like "llvm_cerr << std::flush";

llvm-svn: 31926
 2006-11-26 10:51:51 +00:00
Bill Wendling 4ae401074c Remove #include <iostream> and use llvm_* streams instead. 
llvm-svn: 31925
 2006-11-26 10:17:54 +00:00
Bill Wendling 8f13b5c43e Replace #include <iostream> with llvm_* streams. 
llvm-svn: 31924
 2006-11-26 10:02:32 +00:00
Bill Wendling 5dbf43c983 Removed #include <iostream> and replaced with llvm_* streams. 
llvm-svn: 31923
 2006-11-26 09:46:52 +00:00
Bill Wendling a7459ca813 Removed #include <iostream> and used the llvm_cerr/DOUT streams instead. 
llvm-svn: 31922
 2006-11-26 09:17:06 +00:00
Duraid Madina 24cdf575e7 fix storing bools to mem and unordered FP ops 
llvm-svn: 31920
 2006-11-26 04:34:26 +00:00
Reid Spencer aa5c220665 Make the absolute/relative tolerance information easier to read/understand. 
llvm-svn: 31908
 2006-11-25 08:38:44 +00:00
Reid Spencer 6968c497de Add newline at end of file. 
llvm-svn: 31902
 2006-11-25 05:41:02 +00:00
Reid Spencer 6984a15600 Only show the first few lines of difference. 
llvm-svn: 31901
 2006-11-25 04:07:06 +00:00
Reid Spencer 17782030cf Add an option to enable lli (interpreter mode) testing. 
llvm-svn: 31899
 2006-11-24 20:34:16 +00:00
Reid Spencer 3c3324c7fa Fix some typos. 
llvm-svn: 31897
 2006-11-23 16:45:52 +00:00
Reid Spencer 0e43e15fc9 Promote GEP ubyte indices to uint. Backwards compatibility for 1.2 and 
older features will be dropped soon and these test cases must not rely
on the upgrade capability.

llvm-svn: 31896
 2006-11-23 15:14:52 +00:00
Nick Lewycky 09b7e4d3ab Update to new predicate simplifier VRP design. Fixes PR966 and PR967. 
Remove predicate simplifier from default gcc3 pipeline. New design is too
slow to enable by default.
Add new testcases for problems encountered in development.

llvm-svn: 31895
 2006-11-22 23:49:16 +00:00
Reid Spencer fff57ce9cd Stop early if there is no mis-optimization. 
llvm-svn: 31893
 2006-11-22 03:46:45 +00:00
John Criswell 4666c085f3 Documented the --disable-compression option in gccld and gccas. 
llvm-svn: 31892
 2006-11-21 22:53:12 +00:00
John Criswell dffef2d2f5 Added the --disable-compression option which controls whether the 
generated bytecode uses compression.

llvm-svn: 31891
 2006-11-21 22:50:24 +00:00
Chris Lattner ec45a4c88c This xform is handled by FoldOpIntoPhi in visitCastInst in a more elegant way. 
llvm-svn: 31889
 2006-11-21 17:05:13 +00:00
Anton Korobeynikov 5b96cdebb0 Refactored *GVRequiresExtraLoad() to Subtarget method. 
llvm-svn: 31887
 2006-11-21 00:01:06 +00:00
Jim Laskey efcaa4a8f5 Test for PR1013. 
llvm-svn: 31886
 2006-11-20 21:58:02 +00:00
Chris Lattner e06180bab8 new testcase 
llvm-svn: 31885
 2006-11-20 21:20:57 +00:00
Chris Lattner ec5dbccdcf in ppc64-mode, don't allocate the 32-bit version of r13 either. 
llvm-svn: 31884
 2006-11-20 20:48:05 +00:00
Jim Laskey d7f53cdaec Global label not handled correctly. 
llvm-svn: 31883
 2006-11-20 20:29:06 +00:00
Chris Lattner ac36360348 r13 is the thread pointer on darwin/ppc64, don't allocate it. 
llvm-svn: 31882
 2006-11-20 19:33:51 +00:00
Chris Lattner 1f96052d41 Fix PR1005 
llvm-svn: 31881
 2006-11-20 18:57:02 +00:00
Chris Lattner 55b8683d24 Fix PR1001, patch by Nikhil Patil! 
llvm-svn: 31880
 2006-11-20 18:54:33 +00:00
Chris Lattner 3e96211bc8 Fix codegen for x86-64 on systems (like ppc or i386) that don't have 64-bit 
features autodetected.  This fixes PR1010 and Regression/CodeGen/X86/xmm-r64.ll
on non-x86-64 hosts.

llvm-svn: 31879
 2006-11-20 18:16:05 +00:00
Chris Lattner 3676a994ca Fix PR1011 and CodeGen/Generic/2006-11-20-DAGCombineCrash.ll 
llvm-svn: 31878
 2006-11-20 18:05:46 +00:00
Chris Lattner bffbec4482 Testcase for PR1011 
llvm-svn: 31877
 2006-11-20 18:05:26 +00:00
Chris Lattner 539df43e4b setOperand should not zap the operand list or add implicit operands to an 
instruction.  Doing so breaks the FP stackifier, the alpha branch selector
the sparc fpmover.

This fixes PR1012 and CodeGen/X86/fp-stack-compare.ll

llvm-svn: 31876
 2006-11-20 17:57:22 +00:00
Chris Lattner 2ae1230764 Testcase for pr1012 
llvm-svn: 31875
 2006-11-20 17:55:30 +00:00
Anton Korobeynikov 37d080b11d We should perform extra load for dllimported calls 
llvm-svn: 31874
 2006-11-20 10:46:14 +00:00
Tanya Lattner 84252caf72 Fixed typo 
llvm-svn: 31871
 2006-11-20 06:07:10 +00:00
Tanya Lattner da2d1e2319 Adding 1.9 release and removing references to cfrontend 
llvm-svn: 31870
 2006-11-20 06:04:46 +00:00
Tanya Lattner b0babee602 Changing cfrontend dir to llvm-gcc3.4 as the example. 
llvm-svn: 31869
 2006-11-20 05:52:06 +00:00
Reid Spencer d9436b6837 For PR950: 
First in a series of patches to convert SetCondInst into ICmpInst and
FCmpInst using only two opcodes and having the instructions contain their
predicate value. Nothing uses these classes yet. More patches to follow.

llvm-svn: 31867
 2006-11-20 01:22:35 +00:00
Reid Spencer 9f4448a26e For PR950: 
Retain the signedness of the old integer types in a new TypeInfo structure
so that it can be used in the grammar to implement auto-upgrade of things
that depended on signedness of types. This doesn't implement any new
functionality in the AsmParser, its just plumbing for future changes.

llvm-svn: 31866
 2006-11-19 23:07:00 +00:00
Reid Spencer f69acf3e26 Corrections from review. 
llvm-svn: 31865
 2006-11-19 03:00:14 +00:00
Chris Lattner ea017f66f7 Don't transform in another bad case: if the block is empty, it should be 
simplified before we do this xform so that our cost model is accurate.

llvm-svn: 31864
 2006-11-18 22:25:39 +00:00
Chris Lattner 56ec81ff73 Fix another case we *don't* want to do this xform. 
llvm-svn: 31861
 2006-11-18 21:56:39 +00:00
Reid Spencer e008326b86 Update a reference to the old setcc instruction. 
llvm-svn: 31860
 2006-11-18 21:55:45 +00:00
Reid Spencer c828a0e3fe For PR950: 
Documentation preview of the upcoming icmp and fcmp instructions that
will replace the various setcc instructions.

llvm-svn: 31859
 2006-11-18 21:50:54 +00:00
Chris Lattner 995a0175df MachineInstr includes this 
llvm-svn: 31858
 2006-11-18 21:48:05 +00:00
Chris Lattner ace542fa6c Implement operator<< for machine basic blocks to make it easier to dump them. 
llvm-svn: 31857
 2006-11-18 21:47:36 +00:00
Chris Lattner 7acdc17fe4 make the previous change more aggressive, moving any block with no fallthrough. 
This speeds up yacr2 by 7% on a core2.

llvm-svn: 31856
 2006-11-18 21:30:35 +00:00
Chris Lattner 47ce26158f Minor code layout tweak: if we have something like this: 
if (cond) goto BB2
BB1:
    ...
    return;
BB2:
   ...

Move BB1 to the end of the function so that the code falls through in the
non-return case.  This has the effect of moving assert (and other no-return
call) bodies and return blocks out of loops.

llvm-svn: 31855
 2006-11-18 20:47:54 +00:00
Chris Lattner 95adf8f1da Do not convert massive blocks on phi nodes into select statements. Instead 
only do these transformations if there are a small number of phi's.
This speeds up Ptrdist/ks from 2.35s to 2.19s on my mac pro.

llvm-svn: 31853
 2006-11-18 19:19:36 +00:00
Chris Lattner bfbc7ace7d converting massive blocks of phis into selects like this is silly. 
llvm-svn: 31852
 2006-11-18 19:17:52 +00:00
Reid Spencer 4924c53b5e Make the awk filter print out which files its eliminating. 
llvm-svn: 31851
 2006-11-18 18:30:18 +00:00
Reid Spencer 2ca613bcad This is a utility for preparing patches against LLVM. It runs cvs diff with 
the correct options, places the patch content in order that makes sense for
review, and filters cruft out of the patch (like diffs in *.cvs files). It
produces both a NAME.patch.raw (unfiltered) and NAME.patch (filtered) file.

llvm-svn: 31850
 2006-11-18 18:02:30 +00:00
Reid Spencer 170ff02764 Provide a list of gccld optimization switches. 
llvm-svn: 31849
 2006-11-18 17:14:09 +00:00
Reid Spencer e7c6fcdbf3 Fix bugs in this. What was I thinking??? :) 
llvm-svn: 31848
 2006-11-18 08:06:17 +00:00
Anton Korobeynikov e7cbbfcb30 Movind newly-intorudced dll* linkage stuff & windows CC to "supported" 
list

llvm-svn: 31847
 2006-11-18 08:04:48 +00:00
Chris Lattner ef22b57922 fix bug 
llvm-svn: 31846
 2006-11-18 07:52:10 +00:00
Chris Lattner b81f10efaa first draft of 1.9 release notes 
llvm-svn: 31845
 2006-11-18 07:51:14 +00:00
Reid Spencer d8bd8def37 Fail even if opt doesn't print anything. 
llvm-svn: 31844
 2006-11-18 06:08:21 +00:00
Reid Spencer 178afb1f9c Add a simple test to make sure getModRefInfo is 1/2 way sane. 
llvm-svn: 31842
 2006-11-18 05:52:18 +00:00
Reid Spencer ceeed00be7 Have ConstantExprs upgrade opcodes the same way as instructions. 
llvm-svn: 31841
 2006-11-18 04:37:19 +00:00
Chris Lattner 2cca385fbb on ppc64, float arguments take 8-byte stack slots not 4-byte stack slots. 
Also, valist should create a pointer RC reg class value, not a GPRC value.

llvm-svn: 31840
 2006-11-18 01:57:19 +00:00
Chris Lattner 572e238c14 make sure to safe LR8 in the right stack slot for PPC64 
llvm-svn: 31839
 2006-11-18 01:34:43 +00:00
Chris Lattner 9ca15c8914 Pretty print 'rldicr r2, r2, 2, 61' as 'sldi r2, r2, 2'. 
llvm-svn: 31838
 2006-11-18 01:23:56 +00:00
Chris Lattner 542dfd5510 Rewrite the branch selector to be correct in the face of large functions. 
The algorithm it used before wasn't 100% correct, we now use an iterative
expansion model.  This fixes assembler errors when compiling 403.gcc with
tail merging enabled.

Change the way the branch selector works overall: Now, the isel generates
PPC::BCC instructions (as it used to) directly, and these BCC instructions
are emitted to the output or jitted directly if branches don't need
expansion.  Only if branches need expansion are instructions rewritten
and created.  This should make branch select faster, and eliminates the
Bxx instructions from the .td file.

llvm-svn: 31837
 2006-11-18 00:32:03 +00:00
Chris Lattner 33fc1d45e5 add encoding for BCC, after finally wrestling strange ppc/tblgen endianness 
issues to the ground.

llvm-svn: 31836
 2006-11-17 23:53:28 +00:00
Chris Lattner be9377a1e3 convert PPC::BCC to use the 'pred' operand instead of separate predicate 
value and CR reg #.  This requires swapping the order of these everywhere
that touches BCC and requires us to write custom matching logic for
PPCcondbranch :(

llvm-svn: 31835
 2006-11-17 22:37:34 +00:00
Chris Lattner e0263794f4 rename PPC::COND_BRANCH to PPC::BCC 
llvm-svn: 31834
 2006-11-17 22:14:47 +00:00
Chris Lattner 8c6a41ea12 start using PPC predicates more consistently. 
llvm-svn: 31833
 2006-11-17 22:10:59 +00:00
Evan Cheng 9e8093ae20 For unsigned 8-bit division. Use movzbw to set the lower 8 bits of AX while 
clearing the upper 8-bits instead of issuing two instructions. This also
eliminates the need to target the AH register which can be problematic on
x86-64.

llvm-svn: 31832
 2006-11-17 22:10:14 +00:00
Jim Laskey de5fa025ab Hopefully a good crack at making debugging work on intel -disable-fp-elim. 
llvm-svn: 31830
 2006-11-17 21:19:15 +00:00
Evan Cheng bae950131c Add a x86-64 test case: movb %sil, %ah is illegal. 
llvm-svn: 31829
 2006-11-17 20:41:55 +00:00
Jim Laskey 73106b5e2a Assert unhandled case. 
llvm-svn: 31828
 2006-11-17 18:49:39 +00:00
Jim Laskey 716f64c30b Case sensitive not. 
llvm-svn: 31827
 2006-11-17 18:00:39 +00:00
Jim Laskey 63228b3450 Check for MaxAlign. 
llvm-svn: 31826
 2006-11-17 17:19:49 +00:00
Jim Laskey 6684f2f0a7 Tests to verify PowerPC ABI. 
llvm-svn: 31825
 2006-11-17 16:54:21 +00:00
Jim Laskey 1823346b3e 1. Ignore the -disable-fp-elim when the routine is a leaf. 
2. Offsets on 64-bit stores are still in bytes.

llvm-svn: 31824
 2006-11-17 16:09:31 +00:00
Jim Laskey 91542a4f2d Typo. Fix the nightly tests. 
llvm-svn: 31823
 2006-11-17 14:06:41 +00:00
Jim Laskey da0add3fd0 Fixing the ENABLE_OPTIMIZED=1 DISABLE_ASSERTIONS=1 build. 
llvm-svn: 31822
 2006-11-17 13:07:55 +00:00
Bill Wendling 0d630c33b2 Need <iostream> for the time being. 
llvm-svn: 31821
 2006-11-17 10:09:22 +00:00
Bill Wendling 605795ea8c Need iostream to be included for the time being. 
llvm-svn: 31820
 2006-11-17 10:05:07 +00:00
Bill Wendling 9594f3a196 Moved definition of llvm_ostream wrappers to the Streams.cpp file. 
llvm-svn: 31819
 2006-11-17 09:54:47 +00:00
Bill Wendling 7d9eb5dd33 Used llvm_ostream instead of std::ostream objects. This will reduce use 
of the icky <iostream> class.

llvm-svn: 31818
 2006-11-17 09:52:49 +00:00
Bill Wendling 3315869498 Added wrappers for the std::cerr/std::cout objects. The wrappers will 
soon replace all uses of those objects.

llvm-svn: 31817
 2006-11-17 09:51:22 +00:00
Bill Wendling 9b04e3b875 Needed <iostream> for now. 
llvm-svn: 31816
 2006-11-17 09:44:28 +00:00
Bill Wendling 4479c92da5 Needs the iostream include. 
llvm-svn: 31815
 2006-11-17 09:38:03 +00:00
Bill Wendling 6a462f1e99 Removed iostream #includes. Replaced std::cerr with DOUT. 
llvm-svn: 31814
 2006-11-17 08:03:48 +00:00
Bill Wendling c8e81b8d48 Removed even more std::cerr and #include <iostream> things. 
llvm-svn: 31813
 2006-11-17 07:52:03 +00:00
Bill Wendling 4b1a04ac62 Replaced DEBUG(std::cerr with DOUT. 
llvm-svn: 31812
 2006-11-17 07:36:54 +00:00
Bill Wendling fc9063e9cd Replace DEBUG(std::cerr with DOUT. Removed some iostream #includes. 
llvm-svn: 31811
 2006-11-17 07:33:59 +00:00
Bill Wendling 3216551491 Removed unneeded <iostream> #include. 
llvm-svn: 31810
 2006-11-17 07:10:51 +00:00
Chris Lattner 21eba2da26 If an indvar with a variable stride is used by the exit condition, go ahead 
and handle it like constant stride vars.  This fixes some bad codegen in
variable stride cases.  For example, it compiles this:

void foo(int k, int i) {
  for (k=i+i; k <= 8192; k+=i)
    flags2[k] = 0;
}

to:

LBB1_1: #bb.preheader
        movl %eax, %ecx
        addl %ecx, %ecx
        movl L_flags2$non_lazy_ptr, %edx
LBB1_2: #bb
        movb $0, (%edx,%ecx)
        addl %eax, %ecx
        cmpl $8192, %ecx
        jle LBB1_2      #bb
LBB1_5: #return
        ret

or (if the array is local and we are in dynamic-nonpic or static mode):

LBB3_2: #bb
        movb $0, _flags2(%ecx)
        addl %eax, %ecx
        cmpl $8192, %ecx
        jle LBB3_2      #bb

and:

        lis r2, ha16(L_flags2$non_lazy_ptr)
        lwz r2, lo16(L_flags2$non_lazy_ptr)(r2)
        slwi r3, r4, 1
LBB1_2: ;bb
        li r5, 0
        add r6, r4, r3
        stbx r5, r2, r3
        cmpwi cr0, r6, 8192
        bgt cr0, LBB1_5 ;return

instead of:

        leal (%eax,%eax,2), %ecx
        movl %eax, %edx
        addl %edx, %edx
        addl L_flags2$non_lazy_ptr, %edx
        xorl %esi, %esi
LBB1_2: #bb
        movb $0, (%edx,%esi)
        movl %eax, %edi
        addl %esi, %edi
        addl %ecx, %esi
        cmpl $8192, %esi
        jg LBB1_5       #return

and:

        lis r2, ha16(L_flags2$non_lazy_ptr)
        lwz r2, lo16(L_flags2$non_lazy_ptr)(r2)
        mulli r3, r4, 3
        slwi r5, r4, 1
        li r6, 0
        add r2, r2, r5
LBB1_2: ;bb
        li r5, 0
        add r7, r3, r6
        stbx r5, r2, r6
        add r6, r4, r6
        cmpwi cr0, r7, 8192
        ble cr0, LBB1_2 ;bb

This speeds up Benchmarks/Shootout/sieve from 8.533s to 6.464s and
implements LoopStrengthReduce/var_stride_used_by_compare.ll

llvm-svn: 31809
 2006-11-17 06:17:33 +00:00
Chris Lattner 0727eeaeac New testcase. 
llvm-svn: 31808
 2006-11-17 06:09:49 +00:00
Reid Spencer 4b8067f37b Undo removal of the runtime libraries. While this may have been a bit 
premature, these libraries will be going away for the 2.0 release. Other
arrangements for profiling, gc, etc. should be made in the next few months.

llvm-svn: 31807
 2006-11-17 03:32:33 +00:00
Bill Wendling 9d46fcd59c More removal of std::cerr and DEBUG, replacing with DOUT instead. 
llvm-svn: 31806
 2006-11-17 02:09:07 +00:00
Chris Lattner 3b7261b18e implement a todo: change a map into a vector 
llvm-svn: 31805
 2006-11-17 01:52:23 +00:00
Evan Cheng 71adba6dce Add opcode to TargetInstrDescriptor. 
llvm-svn: 31804
 2006-11-17 01:46:27 +00:00
Bill Wendling ca6f6a43e0 #ifndef NDEBUG the "if (Stream) ..." stuff. 
llvm-svn: 31803
 2006-11-17 01:43:48 +00:00
Evan Cheng 84dd67e08a Add opcode to TargetInstrDescriptor. 
llvm-svn: 31802
 2006-11-17 01:36:01 +00:00
Bill Wendling fc01016c75 Adjusted the // comments so that doxygen picks them up. 
llvm-svn: 31801
 2006-11-17 01:13:12 +00:00
Bill Wendling d108b9a60d Replace std::cerr uses of the "DEBUG" macro with "DOUT" instead. Removes 
a #include of iostream.

llvm-svn: 31800
 2006-11-17 00:50:36 +00:00
Chris Lattner be1a4d80b3 fix typo 
llvm-svn: 31799
 2006-11-17 00:49:36 +00:00
Bill Wendling d7fda04420 Added "DOUT" macro. This is used as a replacement for the std::cerr 
stream. It centralizes the use of std::cerr so that static c'tor/d'tors
aren't scattered around all over the place. The way to use it is like this:

       DOUT << "This is a status line: " << Var << "\n";

If "-debug" is specified, it will print. Otherwise, it'll not print. If
NDEBUG is defined, the DOUT does nothing.

llvm-svn: 31798
 2006-11-17 00:49:12 +00:00
Chris Lattner a715288b40 implicit_def_vrrc doesn't generate code. 
llvm-svn: 31797
 2006-11-16 23:49:52 +00:00
Evan Cheng 538e9cafae New test case. 
llvm-svn: 31796
 2006-11-16 23:38:21 +00:00
Evan Cheng 572dc9cb4e Correct instructions for moving data between GR64 and SSE registers; also correct load i64 / store i64 from v2i64. 
llvm-svn: 31795
 2006-11-16 23:33:25 +00:00
Evan Cheng 7ae482c52a Fix a potential bug: MOVPDI2DI, etc. are not copy instructions. 
llvm-svn: 31794
 2006-11-16 23:22:26 +00:00
Reid Spencer 3f97d03f86 In LLVM 2.0 we won't use the runtime libraries as llvm-gcc3 support will 
be dropped. This patch pertains to removing the runtime directory from LLVM.

llvm-svn: 31793
 2006-11-16 23:17:27 +00:00
Jim Laskey 48850c10c0 This is a general clean up of the PowerPC ABI. Address several problems and 
bugs including making sure that the TOS links back to the previous frame,
that the maximum call frame size is not included twice when using frame
pointers, no longer growing the frame on calls, double storing of SP and
a cleaner/faster dynamic alloca.

llvm-svn: 31792
 2006-11-16 22:43:37 +00:00
Chris Lattner 30055b9208 fix a regression that I introduced. stdu should scale the offset by 4 
before printing it.

llvm-svn: 31791
 2006-11-16 21:45:30 +00:00
Evan Cheng c5e769710e Align stubs on 4 byte boundary. This fixes 447.dealII. 
llvm-svn: 31790
 2006-11-16 20:13:34 +00:00
Bill Wendling 8969ebca44 *** empty log message *** 
llvm-svn: 31789
 2006-11-16 20:11:33 +00:00
Evan Cheng e03ca9b0b4 Allow target to specify alignment for function stub. 
llvm-svn: 31788
 2006-11-16 20:04:54 +00:00
Evan Cheng 9fd73b8a7f Match MachineCodeEmitter changes. 
llvm-svn: 31787
 2006-11-16 20:04:04 +00:00
Reid Spencer b3030c42e0 Use a release version of bugpoint, if found. Include gccld passes. 
llvm-svn: 31786
 2006-11-16 18:32:47 +00:00
Chris Lattner 96d7386006 add a statistic 
llvm-svn: 31785
 2006-11-16 18:13:49 +00:00
Bill Wendling ae2a3097e6 Cleaned up the document. Added "doc_code" divisions for code examples. 
llvm-svn: 31784
 2006-11-16 09:31:19 +00:00
Bill Wendling d811cc6818 Don't recompute getNumOperands for each iteration. 
llvm-svn: 31783
 2006-11-16 07:35:18 +00:00
Bill Wendling cc9816c87b Added "removeRange", which takes and removes an entire LiveRange. 
llvm-svn: 31781
 2006-11-16 02:43:32 +00:00
Bill Wendling c7969fd1e7 Added a new method "CreateNewLiveInterval" which, given a list of 
LiveRanges, creates a new LiveInterval from them. The LiveRanges should
have existed already in another LiveInterval, but removed.

llvm-svn: 31780
 2006-11-16 02:41:50 +00:00
Chris Lattner 2ccd16c0af make this harder 
llvm-svn: 31779
 2006-11-16 01:22:52 +00:00
Chris Lattner a7ff5162b0 fix broken encoding 
llvm-svn: 31778
 2006-11-16 01:01:28 +00:00
Chris Lattner e0a70388c2 enable the branch folding pass for the JIT. 
llvm-svn: 31777
 2006-11-16 01:00:07 +00:00
Chris Lattner e742d9a4b7 add ppc64 r+i stores with update. 
llvm-svn: 31776
 2006-11-16 00:57:19 +00:00
Chris Lattner 6f5840c409 add patterns for ppc32 preinc stores. ppc64 next. 
llvm-svn: 31775
 2006-11-16 00:41:37 +00:00
Chris Lattner 3a494989a6 switch these back to the 'bad old way' 
llvm-svn: 31774
 2006-11-16 00:33:34 +00:00
Evan Cheng f64da389f8 Fix an incorrectly inverted condition. 
llvm-svn: 31773
 2006-11-16 00:08:20 +00:00
Evan Cheng 8ae58b5828 ChangeToRegister should clear IsImp bit. 
llvm-svn: 31772
 2006-11-15 23:55:03 +00:00
Chris Lattner b4e911d15a Fix ppc64 epilog bug. 
llvm-svn: 31771
 2006-11-15 23:35:30 +00:00
Chris Lattner 5771156be0 Stop using isTwoAddress, switching to operand constraints instead. 
Tell the codegen emitter that specific operands are not to be encoded, fixing
JIT regressions w.r.t. pre-inc loads and stores (e.g. lwzu, which we generate
even when general preinc loads are not enabled).

llvm-svn: 31770
 2006-11-15 23:24:18 +00:00
Chris Lattner 78a403f90e Remove the isTwoAddress property from the CodeGenInstruction class. It should 
not be used for anything other than backwards compat constraint handling.

Add support for a new DisableEncoding property which contains a list of
registers that should not be encoded by the generated code emitter.  Convert
the codeemitter generator to use this, fixing some PPC JIT regressions.

llvm-svn: 31769
 2006-11-15 23:23:02 +00:00
Chris Lattner 5c23899c7d add a new field needed by the code emitter generator. 
llvm-svn: 31768
 2006-11-15 22:55:04 +00:00
Chris Lattner 7cab3de0da Fix typo pointed out by Bryan Adams 
llvm-svn: 31766
 2006-11-15 21:04:15 +00:00
Evan Cheng dc2c8748a7 Properly transfer kill / dead info. 
llvm-svn: 31765
 2006-11-15 20:58:11 +00:00
Evan Cheng bbbcac39e6 Kill / dead info has been moved to MI's. 
llvm-svn: 31764
 2006-11-15 20:56:39 +00:00
Evan Cheng c57819d4a3 commuteInstruction should propagate kill / dead info. 
llvm-svn: 31763
 2006-11-15 20:56:03 +00:00
Evan Cheng 0ffff1c629 Match live variable changes. 
llvm-svn: 31762
 2006-11-15 20:55:15 +00:00
Evan Cheng ebb0357b4c Minor updates. 
llvm-svn: 31761
 2006-11-15 20:54:29 +00:00
Evan Cheng 12ea213de9 A register def can be partially dead when the whole register has use(s) but a subreg does not. 
llvm-svn: 31760
 2006-11-15 20:54:11 +00:00
Evan Cheng 70ec52896e Do away with kill / dead maps. Move kill / dead info onto MI's. 
llvm-svn: 31759
 2006-11-15 20:51:59 +00:00
Evan Cheng 5b536a0be9 Add copyKillDeadInfo to copy kill / dead info; other minor updates. 
llvm-svn: 31758
 2006-11-15 20:48:17 +00:00
Chris Lattner 474b5b7c95 fix ldu/stu jit encoding. Swith 64-bit preinc load instrs to use memri 
addrmodes.

llvm-svn: 31757
 2006-11-15 19:55:13 +00:00
Devang Patel 9f3083eef0 Add run(Function &F) support in FunctionPassManager_New 
llvm-svn: 31756
 2006-11-15 19:39:54 +00:00
Chris Lattner 2775aba51d Simplify IntrinsicLowering and clarify that it is only for use by the 
CBE and interpreter.

llvm-svn: 31755
 2006-11-15 18:00:10 +00:00
Chris Lattner 60c2a0154a Remove unneeded forward decls 
llvm-svn: 31754
 2006-11-15 17:53:13 +00:00
Chris Lattner 30d08801ef remove dead #include 
llvm-svn: 31753
 2006-11-15 17:51:15 +00:00
Chris Lattner 0e117c7e9d Fix the PPC regressions last night 
llvm-svn: 31752
 2006-11-15 17:40:51 +00:00
Chris Lattner e3a63d136d Fix a gcc 4.2 warning. 
llvm-svn: 31751
 2006-11-15 04:53:24 +00:00
Reid Spencer 8f73ba7e05 Add a method to get the bit width of a packed type. 
llvm-svn: 31750
 2006-11-15 03:02:41 +00:00
Chris Lattner 1396961e85 Switch loads over to use memri as the operand instead of a reg/imm operand 
pair for cleanliness.  Add instructions for PPC32 preinc-stores with commented
out patterns.  More improvement is needed to enable the patterns, but we're
getting close.

llvm-svn: 31749
 2006-11-15 02:43:19 +00:00
Chris Lattner c94f214d22 ADd support for adding constraints to suboperands 
llvm-svn: 31748
 2006-11-15 02:38:17 +00:00
Devang Patel af87fa3a63 Add doInitialization and doFinalization support in FunctionManager_New. 
llvm-svn: 31747
 2006-11-15 02:07:25 +00:00
Devang Patel 4a3fa4ff26 Tidy up marking of last analysis user pass. 
llvm-svn: 31746
 2006-11-15 01:48:14 +00:00
Devang Patel ff631ae600 Add doInitialization and doFinalization support in FunctionManager_New. 
llvm-svn: 31745
 2006-11-15 01:27:05 +00:00
Devang Patel 42add710fa Do not derive CommonPassManagerImpl from Pass. 
Now BasicBlockPassManager_New is a FunctionPass,
FunctionPassManager_New is a ModulePass

llvm-svn: 31744
 2006-11-15 01:11:27 +00:00
Chris Lattner c75081b7a8 restore some 'magic' code that I removed: it is needed. Add comments explaining 
why.

llvm-svn: 31743
 2006-11-14 22:17:10 +00:00
Chris Lattner c5dd5b11a4 minimal hack to get patterns whose result type is iPTR to be selected. 
llvm-svn: 31742
 2006-11-14 21:50:27 +00:00
Devang Patel 07f4f58945 Copy initializeAnalysisImpl() implementation from PassManagerT. 
Update LastUser to recursively walk required transitive set.

llvm-svn: 31741
 2006-11-14 21:49:36 +00:00
Chris Lattner 75165d07a0 remove some dead code 
llvm-svn: 31740
 2006-11-14 21:41:35 +00:00
Chris Lattner 7c9f48cefb Add support for nodes that return iPTR. 
llvm-svn: 31739
 2006-11-14 21:32:01 +00:00
Chris Lattner 110c777f2c changes to get ptr_rc to be accepted in patterns. This is needed for ppc preinc 
stores.

llvm-svn: 31738
 2006-11-14 21:18:40 +00:00
Evan Cheng cf772f7eca Revert. This wasn't meant to be checked in. 
llvm-svn: 31737
 2006-11-14 19:20:33 +00:00
Chris Lattner e79a451475 group load and store instructions together. No functionality change. 
llvm-svn: 31736
 2006-11-14 19:19:53 +00:00
Chris Lattner 58e8bed48e Fix predicates for unindexed stores so they don't accidentally match indexed 
stores.

llvm-svn: 31735
 2006-11-14 19:13:39 +00:00
Chris Lattner 44dbdbe5cf Rework PPC64 calls. Now we have a LR8/CTR8 register which the PPC64 calls 
clobber.  This allows LR8 to be save/restored correctly as a 64-bit quantity,
instead of handling it as a 32-bit quantity.  This unbreaks ppc64 codegen when
the code is actually located above the 4G boundary.

llvm-svn: 31734
 2006-11-14 18:44:47 +00:00
Chris Lattner b542925b22 remove a ton of custom selection logic no longer needed 
llvm-svn: 31733
 2006-11-14 18:43:11 +00:00
Chris Lattner f8c06b335d Fix a bug handling nodes with variable arguments. The code was fixed to assume 
that there were two input operands before the variable operand portion.  This
*happened* to be true for all call instructions, which took a chain and a
destination, but was not true for the PPC BCTRL instruction, whose destination
is implicit.

Making this code more general allows elimination of the custom selection logic
for BCTRL.

llvm-svn: 31732
 2006-11-14 18:41:38 +00:00
Chris Lattner 4916acbd0f it would be nice of ctlz were lowered to bsf etc. 
llvm-svn: 31730
 2006-11-14 08:08:46 +00:00
Chris Lattner f05d69ae72 implement InstCombine/shift-simplify.ll by transforming: 
(X >> Z) op (Y >> Z)  -> (X op Y) >> Z

for all shifts and all ops={and/or/xor}.

llvm-svn: 31729
 2006-11-14 07:46:50 +00:00
Chris Lattner c348c50c38 new testcase 
llvm-svn: 31728
 2006-11-14 07:45:36 +00:00
Chris Lattner d12a4bf799 implement InstCombine/and-compare.ll:test1. This compiles: 
typedef struct { unsigned prefix : 4; unsigned code : 4; unsigned unsigned_p : 4; } tree_common;
int foo(tree_common *a, tree_common *b) { return a->code == b->code; }

into:

_foo:
        movl 4(%esp), %eax
        movl 8(%esp), %ecx
        movl (%eax), %eax
        xorl (%ecx), %eax
        # TRUNCATE movb %al, %al
        shrb $4, %al
        testb %al, %al
        sete %al
        movzbl %al, %eax
        ret

instead of:

_foo:
        movl 8(%esp), %eax
        movb (%eax), %al
        shrb $4, %al
        movl 4(%esp), %ecx
        movb (%ecx), %cl
        shrb $4, %cl
        cmpb %al, %cl
        sete %al
        movzbl %al, %eax
        ret

saving one cycle by eliminating a shift.

llvm-svn: 31727
 2006-11-14 06:06:06 +00:00
Chris Lattner 9adf8294ef new testcase 
llvm-svn: 31726
 2006-11-14 06:04:35 +00:00
Chris Lattner 97ff46b3cc lower "X = seteq Y, Z" to '(shr (ctlz (xor Y, Z)), 5)' instead of 
'(shr (ctlz (sub Y, Z)), 5)'.

The use of xor better exposes the operation to bit-twiddling logic in the
dag combiner.  For example, this:

typedef struct {
  unsigned prefix : 4;
  unsigned code : 4;
  unsigned unsigned_p : 4;
} tree_common;

int foo(tree_common *a, tree_common *b) {
  return a->code == b->code;
}

Now compiles to:

_foo:
        lwz r2, 0(r4)
        lwz r3, 0(r3)
        xor r2, r3, r2
        rlwinm r2, r2, 28, 28, 31
        cntlzw r2, r2
        srwi r3, r2, 5
        blr

instead of:

_foo:
        lbz r2, 3(r4)
        lbz r3, 3(r3)
        srwi r2, r2, 4
        srwi r3, r3, 4
        subf r2, r2, r3
        cntlzw r2, r2
        srwi r3, r2, 5
        blr

saving a cycle.

llvm-svn: 31725
 2006-11-14 05:28:08 +00:00
Andrew Lenharth 0ad1e3845b A shim over other AA impls to catch incorrect uses 
llvm-svn: 31724
 2006-11-14 05:21:04 +00:00
Reid Spencer 1b89a7bcc1 Discard code that supported old bytecode formats. This makes the Bytecode 
Reader code much easier to read and maintain. Backwards compatibility from
version 5 format has been retained. Older formats will produce an error.

llvm-svn: 31723
 2006-11-14 04:47:22 +00:00
Devang Patel ca1892699c Implement removeDeadPasses(). 
llvm-svn: 31722
 2006-11-14 03:05:08 +00:00
Devang Patel 3f0832a3b5 Keep track of Last user of analysis phase. 
llvm-svn: 31721
 2006-11-14 02:54:23 +00:00
Devang Patel f60b5d9676 Use std::map to map AnalysisID and Pass. 
llvm-svn: 31720
 2006-11-14 01:59:59 +00:00
Chris Lattner 6dc22332bf add a note 
llvm-svn: 31719
 2006-11-14 01:57:53 +00:00
Chris Lattner 683712583a minor tweaks, reject vector preinc. 
llvm-svn: 31717
 2006-11-14 01:38:31 +00:00
Devang Patel 050ec72ae4 Manage analysis passes during run. 
llvm-svn: 31716
 2006-11-14 01:23:29 +00:00
Tanya Lattner 9ce0379da2 Updating configure script for 2.0 
llvm-svn: 31715
 2006-11-14 00:59:52 +00:00
Devang Patel dafa4ddc46 Update comments. 
llvm-svn: 31713
 2006-11-14 00:03:04 +00:00
Evan Cheng dbd3d294e6 Matches MachineInstr changes. 
llvm-svn: 31712
 2006-11-13 23:36:35 +00:00
Evan Cheng 77af6ac5e8 - Let MachineInstr ctors add implicit def and use operands. Other operands 
will be inserted before these operands. If the opcode changes (by
  setOpcode), the implicit operands are updated as well.
- Added IsKill, IsDead fields to MachineOperand in preparation for changes
  that move kill / dead info to MachineInstr's.

llvm-svn: 31711
 2006-11-13 23:34:06 +00:00
Devang Patel 7086844634 Update PassManagerImpl_New::analysisCurrentlyAvailable to check all 
managed passmanagers.

llvm-svn: 31710
 2006-11-13 22:53:19 +00:00
Devang Patel ebba970a6d Check currently available anlysis in active managers. 
llvm-svn: 31709
 2006-11-13 22:40:09 +00:00
Chris Lattner 1121e50f7e teach the g5 hazard recognizer about update loads. This fixes 
Ptrdist/anagram among others.

llvm-svn: 31708
 2006-11-13 20:11:06 +00:00
Reid Spencer 3d1027193f For PR950: 
Changes for new cast instructions that are backwards compatible.

llvm-svn: 31707
 2006-11-13 18:00:52 +00:00
Reid Spencer 7354395590 Don't hard code test names into the test. 
llvm-svn: 31706
 2006-11-13 17:55:34 +00:00
Reid Spencer 83c7a1e710 Fix 80 cols violations. 
llvm-svn: 31705
 2006-11-13 16:21:09 +00:00
Reid Spencer 5953e4e805 For PR950: 
Use the notcast script in preparation for 12 casts.

llvm-svn: 31704
 2006-11-13 16:13:38 +00:00
Reid Spencer 6170dff047 For PR950: 
Use the notcast script in preparation for 12 cast instructions.

llvm-svn: 31703
 2006-11-13 16:12:25 +00:00
Reid Spencer 7debe5e948 Make it handle plain old cast too, for old assembly. 
llvm-svn: 31702
 2006-11-13 16:11:14 +00:00
Reid Spencer 6f406f91d2 Handle ptrtoint and inttoptr 
llvm-svn: 31701
 2006-11-13 16:09:37 +00:00
Reid Spencer cac60e8eb4 Add some output so the user is informed while they wait. 
llvm-svn: 31700
 2006-11-13 16:08:51 +00:00
Reid Spencer e473e41e59 Add a link to the GEP FAQ. 
llvm-svn: 31698
 2006-11-13 08:03:59 +00:00
Chris Lattner 5c833df633 remove redundant code 
llvm-svn: 31697
 2006-11-13 01:10:12 +00:00
Nick Lewycky 0df2ada9d4 Cute example from Chris Lattner. 
llvm-svn: 31696
 2006-11-13 00:23:28 +00:00
Bill Wendling ad75361d42 Initialize some pointers to quiet the compiler (when doing build_gcc 
builds).

llvm-svn: 31694
 2006-11-12 11:10:39 +00:00
Reid Spencer 5b9506439a Document new constant expr operators, rename bitconvert as bitcast. 
llvm-svn: 31693
 2006-11-11 23:08:07 +00:00
Reid Spencer b608daeec3 Revert premature patch. 
llvm-svn: 31692
 2006-11-11 23:06:47 +00:00
Reid Spencer 8b8913ba61 Document new constant expr operators, rename bitconvert as bitcast. 
llvm-svn: 31691
 2006-11-11 22:34:59 +00:00
Jim Laskey 1dfc6110ff Make sure stack link is set in 64-bit. 
llvm-svn: 31690
 2006-11-11 22:22:07 +00:00
Jim Laskey a3262ee8ec XFAIL All but powerpc 
llvm-svn: 31689
 2006-11-11 22:14:46 +00:00
Reid Spencer b7344ff025 Add a preview of two new conversion operators: ptrtoint and inttoptr. Update 
the defintion of bitconvert correspondingly.

llvm-svn: 31688
 2006-11-11 21:00:47 +00:00
Reid Spencer 06d8e0fa3b Remvoe a do-nothing else block. 
llvm-svn: 31687
 2006-11-11 20:27:49 +00:00
Reid Spencer 2230144a75 Make an assert comment match the tested assertion. 
llvm-svn: 31686
 2006-11-11 20:07:59 +00:00
Reid Spencer 3005d47797 Minor style fixes from review. 
llvm-svn: 31685
 2006-11-11 19:59:25 +00:00
Chris Lattner 0d550cc56c implement proper PPC64 prolog/epilog codegen. 
llvm-svn: 31684
 2006-11-11 19:05:28 +00:00
Reid Spencer 471bcb750e Add a -disable-loop-extraction option to bugpoint. 
llvm-svn: 31683
 2006-11-11 19:05:02 +00:00
Reid Spencer 75db664f44 For PR998: 
Fix an infinite loop in the Linker and a few other assorted link problems.

Patch contributed by Scott Michel. Thanks, Scott!

llvm-svn: 31680
 2006-11-11 11:54:25 +00:00
Jim Laskey ebdf6f46eb Works for PowerPC with frame pointers. 
llvm-svn: 31679
 2006-11-11 10:22:56 +00:00
Reid Spencer 2e80be8251 Add -lstdc++ to the link line for C++ programs. 
llvm-svn: 31678
 2006-11-11 10:22:48 +00:00
Jim Laskey 66c502b54a Running with frame pointers prevented debugging, external probes and 
potentially some system calls/exception handling from working.  TOS must always
link to previous frame.  This is a short term workaround until alloca scheme is
reworked.

llvm-svn: 31677
 2006-11-11 10:21:58 +00:00
Evan Cheng db04c958a5 Add implicit use / def operands to created MI's. 
llvm-svn: 31676
 2006-11-11 10:21:44 +00:00
Evan Cheng 979bbf48d5 Add methods to add implicit def use operands to a MI. 
llvm-svn: 31675
 2006-11-11 10:20:02 +00:00
Evan Cheng a36cdcfaf8 Add all implicit defs to FP_REG_KILL mi. 
llvm-svn: 31674
 2006-11-11 07:19:36 +00:00
Chris Lattner c5102bfc7c allow the offset of a preinc'd load to be the low-part of a global. This 
produces this clever code:

_millisecs:
        lis r2, ha16(_Time.1182)
        lwzu r3, lo16(_Time.1182)(r2)
        lwz r2, 4(r2)
        addic r4, r2, 1
        addze r3, r3
        blr

instead of this:

_millisecs:
        lis r2, ha16(_Time.1182)
        la r3, lo16(_Time.1182)(r2)
        lwz r2, lo16(_Time.1182)(r2)
        lwz r3, 4(r3)
        addic r4, r3, 1
        addze r3, r2
        blr

for:

long %millisecs() {
        %tmp = load long* %Time.1182            ; <long> [#uses=1]
        %tmp1 = add long %tmp, 1                ; <long> [#uses=1]
        ret long %tmp1
}

llvm-svn: 31673
 2006-11-11 04:53:30 +00:00
Chris Lattner 2ff632c54b Mark operands as symbol lo instead of imm32 so that they print lo(x) around 
globals.

llvm-svn: 31672
 2006-11-11 04:51:36 +00:00
Devang Patel 1a6eaa49fe Implement schedulePasses(). 
llvm-svn: 31671
 2006-11-11 02:22:31 +00:00
Devang Patel db789fb8f2 Implement PassManagerImpl_New::add(). 
Just add pass into the pass manager queue without processing analysis.

llvm-svn: 31670
 2006-11-11 02:06:21 +00:00
Devang Patel 90b05e0bc3 While adding pass into the manager, process Analysis only if it is 
required to do so.

llvm-svn: 31669
 2006-11-11 02:04:19 +00:00
Devang Patel 2efbad4a72 Remove dead code. 
llvm-svn: 31668
 2006-11-11 01:56:39 +00:00
Devang Patel 8cad70de14 Code refactoring. Move common code into CommonPassManagerImpl :) 
llvm-svn: 31667
 2006-11-11 01:51:02 +00:00
Devang Patel a98445962d Move CommonPassManagerImpl from PassManager.h to PassManager.cpp 
llvm-svn: 31666
 2006-11-11 01:31:05 +00:00
Devang Patel 349170f5da Remove analysis that is not preserved by the pass from AvailableAnalysis. 
llvm-svn: 31665
 2006-11-11 01:24:55 +00:00
Devang Patel 643676c1f5 Keep track if analysis made available by the pass. 
llvm-svn: 31664
 2006-11-11 01:10:19 +00:00
Reid Spencer e183ed753f Instruction name changes. 
llvm-svn: 31663
 2006-11-11 01:04:13 +00:00
Reid Spencer 279a3aefc3 Enable path completion when typing the TESTSUITE= option by allowing the 
test directory to precede the test suite name. That is, it will strip off
test/ from TESTSUITE which allows path completion from the command line.

llvm-svn: 31662
 2006-11-11 01:02:45 +00:00
Chris Lattner a0a8003f59 disallow preinc of a frameindex. This is not profitable and causes 2-addr 
pass to explode.  This fixes a bunch of llc-beta failures on ppc last night.

llvm-svn: 31661
 2006-11-11 01:00:15 +00:00
Chris Lattner eabc15c1d8 reduce indentation by using early exits. No functionality change. 
llvm-svn: 31660
 2006-11-11 00:56:29 +00:00
Devang Patel 6c9f548704 Keep track of analysis required by the passes. Force use of new pass 
manager if a pass does not preserve analysis that is used by other
passes.

llvm-svn: 31659
 2006-11-11 00:42:16 +00:00
Chris Lattner ffad2166e1 move big chunks of code out-of-line, no functionality change. 
llvm-svn: 31658
 2006-11-11 00:39:41 +00:00
Chris Lattner e15018b8b7 enable this test, check ppc64 as well. 
llvm-svn: 31657
 2006-11-11 00:13:07 +00:00
Chris Lattner b314b155ed ppc64 doesn't have lwau, don't attempt to form it. 
llvm-svn: 31656
 2006-11-11 00:08:42 +00:00
Reid Spencer d185c02007 Allow ENABLE_OPTIMIZED=0 to turn off optimization (turn on debug). 
llvm-svn: 31655
 2006-11-11 00:00:31 +00:00
Chris Lattner c9fa36d706 implement preinc support for r+i loads on ppc64 
llvm-svn: 31654
 2006-11-10 23:58:45 +00:00
Chris Lattner d4dee405cb Fix InstCombine/2006-11-10-ashr-miscompile.ll a miscompilation introduced 
by the shr -> [al]shr patch.  This was reduced from 176.gcc.

llvm-svn: 31653
 2006-11-10 23:38:52 +00:00
Chris Lattner d530a503da This testcase is miscompiled by instcombine, reduced from 176.gcc 
llvm-svn: 31652
 2006-11-10 23:37:54 +00:00
Evan Cheng 915026cdc3 Add a note. 
llvm-svn: 31650
 2006-11-10 22:09:17 +00:00
Evan Cheng 5b725a71a9 These are done. 
llvm-svn: 31649
 2006-11-10 22:03:35 +00:00
Evan Cheng 49683ba236 Don't dag combine floating point select to max and min intrinsics. Those 
take v4f32 / v2f64 operands and may end up causing larger spills / restores.
Added X86 specific nodes X86ISD::FMAX, X86ISD::FMIN instead.

This fixes PR996.

llvm-svn: 31645
 2006-11-10 21:43:37 +00:00
Chris Lattner 4eac5f59e6 Fix a dag combiner bug exposed by my recent instcombine patch. This fixes 
CodeGen/Generic/2006-11-10-DAGCombineMiscompile.ll and PPC gsm/toast

llvm-svn: 31644
 2006-11-10 21:37:15 +00:00
Chris Lattner 82a85b66a3 new testcase 
llvm-svn: 31643
 2006-11-10 21:36:07 +00:00
Devang Patel 0ed477969f s/PassManagerAnalysisHelper/CommonPassManagerImpl 
Inherit CommonPassManagerImpl from Pass.

llvm-svn: 31642
 2006-11-10 21:33:13 +00:00
Evan Cheng fb44822a98 Fix a bug in SelectScalarSSELoad. Since the load is wrapped in a 
SCALAR_TO_VECTOR, even if the hasOneUse() check pass we may end up folding
the load into two instructions. Make sure we check the SCALAR_TO_VECTOR
has only one use as well.

llvm-svn: 31641
 2006-11-10 21:23:04 +00:00
Jim Laskey bc60d34748 Must have a frame pointer argument fixed. Now fails on PowerPC. 
llvm-svn: 31639
 2006-11-10 17:56:29 +00:00
Jim Laskey 11ba2bf721 Must have a frame pointer. 
llvm-svn: 31638
 2006-11-10 17:51:25 +00:00
Chris Lattner 6c8656a6b1 dform 8/9 are identical to dform 1 
llvm-svn: 31637
 2006-11-10 17:51:02 +00:00
Reid Spencer 8488eac9d7 This is XFAILed on i[0-9]86 systems not Linux 
llvm-svn: 31636
 2006-11-10 17:47:28 +00:00
Jim Laskey 0c75372933 Shut up the warning. 
llvm-svn: 31635
 2006-11-10 14:44:12 +00:00
Evan Cheng 286357480c Fix a potential bug. 
llvm-svn: 31634
 2006-11-10 09:13:37 +00:00
Evan Cheng 8c9c6d71ed Add implicit def / use operands to MachineInstr. 
llvm-svn: 31633
 2006-11-10 08:43:01 +00:00
Evan Cheng f5bebe83a5 Add implicit def / use operands to MachineInstr. 
llvm-svn: 31632
 2006-11-10 08:32:14 +00:00
Evan Cheng 13440b025c When forming a pre-indexed store, make sure ptr isn't the same or is a pred of value being stored. It would cause a cycle. 
llvm-svn: 31631
 2006-11-10 08:28:11 +00:00
Anton Korobeynikov a1561d4fdf Adding target triple to test 
llvm-svn: 31630
 2006-11-10 06:59:53 +00:00
Tanya Lattner 1537ecce93 xfail for llvmgcc3 
llvm-svn: 31629
 2006-11-10 04:53:50 +00:00
Chris Lattner d5e604dbb2 commentate 
llvm-svn: 31627
 2006-11-10 04:41:34 +00:00
Chris Lattner ce6455489a add an initial cut at preinc loads for ppc32. This is broken for ppc64 
(because the 64-bit reg target versions aren't implemented yet), doesn't
support r+r addr modes, and doesn't handle stores, but it works otherwise. :)

This is disabled unless -enable-ppc-preinc is passed to llc for now.

llvm-svn: 31621
 2006-11-10 02:08:47 +00:00
Chris Lattner 7a82314782 make this test more interesting 
llvm-svn: 31619
 2006-11-10 02:04:52 +00:00
Chris Lattner ba7b3673f9 allow ptr_rc to explicitly appear in an instructions operand list, it doesn't 
have to be a subpart of a complex operand.

llvm-svn: 31618
 2006-11-10 02:01:40 +00:00
Chris Lattner cd436327f1 add note about ugly codegen with preinc 
llvm-svn: 31617
 2006-11-10 01:33:53 +00:00
Evan Cheng 14140059f0 Use TargetInstrInfo::getNumOperands() instead of MachineInstr::getNumOperands(). In preparation for implicit reg def/use changes. 
llvm-svn: 31616
 2006-11-10 01:28:43 +00:00
Anton Korobeynikov b9c91c265c Fixing PR990: http://llvm.org/PR990. 
This should unbreak csretcc on Linux & mingw targets. Several tests from
llvm-test should be also restored (fftbench, bigfib).

llvm-svn: 31613
 2006-11-10 00:48:11 +00:00
Chris Lattner 4e03cb1945 add a note about viterbi 
llvm-svn: 31612
 2006-11-10 00:23:26 +00:00
Chris Lattner 82928ca290 second patch to fix PR992/993. 
llvm-svn: 31610
 2006-11-09 23:36:08 +00:00
Chris Lattner 8511bd95f5 new testcases for PR992/993 
llvm-svn: 31609
 2006-11-09 23:35:01 +00:00
Chris Lattner 924f4fee8b Minimal patch to fix PR992/PR993 
llvm-svn: 31608
 2006-11-09 23:17:45 +00:00
Reid Spencer 51b07256a3 Post-review changes on conversion instructions. 
llvm-svn: 31607
 2006-11-09 23:03:26 +00:00
Reid Spencer 2e2740d46a Fix runaway <tt> element and section ordering. 
llvm-svn: 31606
 2006-11-09 21:48:10 +00:00
Reid Spencer 8a82cc6304 Remove futurisms that won't be in our future. 
llvm-svn: 31605
 2006-11-09 21:42:14 +00:00
Reid Spencer a89fb18c98 One more time for indentation. 
llvm-svn: 31604
 2006-11-09 21:18:01 +00:00
Reid Spencer 443460a318 Fix indentation problem starting at GEP. 
llvm-svn: 31603
 2006-11-09 21:15:49 +00:00
Chris Lattner 5fdbe55979 if lazy compilation is disabled, print an error message and abort if 
lazy compilation is ever attempted

llvm-svn: 31602
 2006-11-09 19:32:13 +00:00
Chris Lattner 87aee74ccb init ivar 
llvm-svn: 31601
 2006-11-09 19:31:15 +00:00
Chris Lattner 6dbe06de39 allow clients to indicate that they never want lazy compilation. 
llvm-svn: 31600
 2006-11-09 19:30:47 +00:00
Evan Cheng 36a8fbf771 PPC supports i32 / i64 pre-inc load / store. 
llvm-svn: 31599
 2006-11-09 19:11:50 +00:00
Evan Cheng 6878378390 Don't attempt expensive pre-/post- indexed dag combine if target does not support them. 
llvm-svn: 31598
 2006-11-09 19:10:46 +00:00